Mining machine



F. CARTLIDGE MINING MACHINE Nov. 5, 1929.

Filed June 20, 1913 3 Sheets-Sheet F. CARTLIDGE MINING MACHINE Nov. 5, 1929.

Filed June 20 1918 3 heets-Sheet 2 ILZLZZI/ ///I III /////7T///////777 /77////////////////// Y/J /////j///////LLL/ 1/1 Fig. 5.

Nov. 5, 1929. F. CARTLIDGE 1,734,940

MINING MACHINE Filed June 20, 1918 3 Sheets-Sheet 3 fizz/en for:

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Patented Nov. 5, 1929 UNITED STATES PATENT OFFICE FRANK CABTLIDGE, OF CLABEMONT, NEW HAMPSHIRE, ASSIGNOR TO SULLIVAN MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS MINING MACHINE Application filed June 20, 1918. Serial No. 241,083.

This invention relates to mining machines for cutting kerfs in a mine face, and has for its general object to increase the adjustability of the cutting mechanism of machines of this type, said invention, in its preferred form, comprising mechanism conveniently operable to cut a kerf in substantially any desired plane.

The foregoing and other objects of the invention, together with means whereby the same may be carried into effect, will best be understood from the following description of one form or embodiment thereof shown for purposes of illustration in the accompany ing drawings.

In said drawings,

Fig. 1 is a view, partly in side elevation and partly in longitudinal vertical section, of a machine constructed in accordance with go the invention.

Fig. 2 is a plan view partly broken away.

Fig. 3 is a detail horizontal sectional View, taken substantially on the line 33, Fig. 1, of a portion of the mechanism for swinging the cutter bar.

Fig. 4 is a detail vertical sectional View, taken substantially on the line 4-4, Fig. 2, of a portion of the mechanism for adjusting the cutter bar.

Fig. 5 is a detail vertical sectional view, taken substantially on the line 55, Fig. 2, of a portion of the mechanism for operating the turntable.

Fig. 6 is a simplified diagrammatic plan view, and Fig. 7 a simplified diagrammatic side elevation, both views illustrating the operation of the machine in undercutting, and showing the manner in which the cutter is caused to operate substantially in the plane of the mine bottom.

Figs. 8 and 9 are similar views, respectively, illustrating the operation of the machine in shearing.

Fig. 10 is a simplified diagrammatic side elevation showing the parts adjusted for transportation about the mine.

Fig. 11 and 12 are simplified diagrammatic plan views illustrating the operation of the machine in undercutting faces located parallel to the track.

Fig. 13 is a section on line 13-13 of Fig. 3.

Fig. 14 is a diagrammatic view illustrating the operation 01 the machine in arcwail cutting on the mine bottom outside of the mine trackway.

The invention is herein illustrated as embodied in a truck mounted machine equipped with a cutter bar and an endiess cutter chain OI the type now ordinarily in use in coal cutting machines, and piovided with im- PlOvGU means whereby said cutter bar may be adj us.ed into various operative PQSILIOUS to cut a horizontal, a vertical, or an inciined keri in any desired plane within the limits OI the machine, all while the cutting mechanism is maintained upon the truck.

tiererring to Figs. 1 and 2, the machine includes a suitable support herein in the form of a truck frame 25 mounted on wheels 26 adapted to run upon and be guided by a usual trackway 27. As illustrated, the truck is preterabiy adapted to be propelled about the mine under its own power, and to this end the axles of the wheels 26 are connected by chain and sprocket gearing 28 (Fig. 2) and driven by a chain and sprocket connection 28 with a hub 28 loosely mounted on a shaft 29 and adapted to be connected therewith by means of a suitable clutch 29. The shaft 29 is journaled in the truck body 25 and is provided with a worm gear 30 meshing with a worm 31 on the shaft 32 of an electric or other motor 33. Preferably, the motor 33 is of the reversible type and is controlled by a suitable controller 34. The worm 31 is preferably loosely mounted on the shaft 32 and may be connected therewith by-means of a suitable clutch 35. Thus, it will be seen that by proper operation of the controller 34 and clutch 35, the truck may be propelled about the mine at will under its own power and in either direction, or may remain stationary.

Carried upon the truck frame 25 is a second support herein including a turntable 36 comprising a circular plate disposed in a lane substantially parallel to the plane 0 the track 27 and truck frame 25, but mounted on the latter for angular and vertical movement with respect thereto. To this end, the truck frame 25 is formed with a cylindrical chamber or guide 37 which forms a turretbase and receives a depending cylindrical flange 38 bolted or otherwise secured to the turntable plate 36, said flange 38 substantially fitting and telescoping with the guide 37 and being adapted to turn within the same, thereby permitting the turntable 36 to be adjusted into substantially any angular position with respect to the truck body 25 and trackway 27. In order to prevent cramping of the turntable, due to eccentric loading, and consequent interference with its turning movements, antifriction bearings 36 and 36", respectively, are preferably employed, the former being carried by the lower end of the flange 38 and sliding within the cylinder 37 and the latter being mounted on the upper end of the cylinder 37 and having sliding engagement with the flange 38.

For raising and lowering the turntable 36 with respect to the truck, there is provided a hydraulic motor, ram, or jack comprising a cylinder 40 arranged concentric with the guide 37 and within the same, and a piston 41 within said cylinder and abutting, at its upper end, the lower side of the turntable 36. The cylinder 40 is preferably formed integral with the guide 37 and is provided at its under side with a removable head 42. The piston 41 may be provided with acking 43 of any suitable form. The cylinder 40 is supplied with pressure fluid through a passage 44 in the bottom wall of the guide 37, said passage communicating with a pipe 45 leading from the discharge valve 46 of a pump comprising -a plunger 47 operating in a cylinder 48. The pump cylinder 48 is provided with the usual inlet valve 49 communicating with a reservoir 50 for oil or other liquid, said reservoir being preferably formed integral with the guide 37. The operation of the piston 41 in the cylinder 40 is controlled by a suitable valve 51 interposed between the pump cylinder 48 'and the inlet valve 46, and communicating also with the reservoir 50, said valvebeing preferably of the three-way type and operable to admit pressure from the pump cylinder 48 to the ram cylinder 40, to trap liquid in said' ram cylinder, or to discharge said liquid into the reservoir 50'. Valves of this type being well known in the art, this valve is not illustrated in detail herein, as, specifically, it forms no portion of the present invention.

The pump plunger 47 is connected by a pitman 52 with a crank disk 53 on a shaft 54 journaled in suitable bearings on the truck frame 25, said shaft being provided with a worm gear 55 meshing with a worm 56 loosely mounted on the motor shaft 32. The clutch 35 is preferably double acting, and is adapted to connect either of the worms 31 or 56 to the shaft 32, or tooccupy a neutral position in which both of said worms are disconnected from said shaft, whereby the power of the motor 33 may be employed at will either to propel the truck or to raise the turntable 36 by means of the hydraulic ram 41.

Mounted on the turntable 36 for movement therewith, is the cutting mechanism including a reversible electric or other motor 67 having a casing 39 and a suitable controller 67 a cutter bar 68 carrying the usual endless chain 69 provided with cutter bits 70, and connections hereinafter more fully described for supporting, positioning, and operating the cutter bar and for actuating the cutter chain.

Mechanism is provided for rotating the turntable 36 and the cutting mechanism in order to adjust or position the latter angularly with respect to the truck and trackway, said mechanism, as herein shown, being as follows: The shaft 71 of the motor 67 is provided with a bevel gear 57 which meshes with two oppositely disposed bevel gears 58 loosely mounted on a shaft 59 journaled in brackets or arms 60 projecting from the motor casing 39. Cooperating with the gears 58 and shaft 59 is a double acting clutch 61 movable into opposite positions to connect either of said gears with said shaft, or into an intermediate position, whereby the shaft 59 may be rotated from the shaft 71 in either direction, or may be disconnected therefrom. The shaft 59 is provided with a worm 62 which meshes with a worm gear 63 on a shaft 64 journaled in a suitable bearing 65 carried by one of the brackets 60. Loosely mounted on the shaft 64, but adapted to be connected therewith by means of a clutch 66, is a worm 72 which meshes with a worm gear 73 having a sliding splined connection with a vertical shaft 74 slidably and rotatably mounted in one of the arms or brackets 60 and in a third arm 75, whereby said shaft may be held against vertical movement whilepermitting the arms 60 and 75 and the gear 73, which is positioned between them, to move vertically with the cutting mechanism and the turntable when the latter is raised or lowered by the ram 41. end of the shaft 74 is a pinion 76 which meshes with the toothed periphery of an annulus or ring 77 surrounding the cylindrical flange 38 and bolted or otherwise secured to the truck body 25. Secured to the upper face of the ring 77, and surrounding the turntable plate 36, is a second ring 78 whose edge projects beyond the toothed edge of the ring 77 and overlies the edge of the pinion 76, thereby holding said pinion, and consequently the shaft 74, against vertical movement with the turntable, and retaining said pinion in en gagement with the toothed periphery of the ring 77 irrespective of the vertical position of said turntable.

The motor casing 39 is formed at its forward end with an annular guide portion 79 Secured to the lower within which is guided for rotary movement about an approximately horizontal longitudinal axis the annular rear end 80 of a turret 81 carrying the cutter bar 68 and certain of the mechanism for positioning and actuatingrthe same.

or rotating the turret 81, said turret is provided adjacent its rear end with an internal gear 82 which is engaged by a pinion 83 fast on the forward end of a shaft 84 journaled in suitable bearings 84 on the motor casing 39. Secured to the rear end of the shaft 84 is a worm gear 85 cooperating with a worm 86 (see Fig. 5) loosel mounted on one end of a transverse sha 87 and adapted to be connected thereto by means of a suitable clutch 88. The shaft 87 is journaled in a bearing 89 carried by the motor casing 39, and has fast upon its other end a bevel gear 90 which meshes with a bevel pinion 91 on the forward end of the shaft 64. By properly operating the clutches 61, 66, and 88 the turret 81 can be rotated about its axis in either direction and to any desired extent, While leaving the turntable stationary.

The turret 81 is herein also provided with ways 92 in which is mounted, for movement transverse to said turret, a sliding frame 93. Rotatably mounted on the frame 93, for angular movement about an axis transverse to the axis of rotation of the turret 81, is a turret 94 by which the cutter bar 68 is rigidly carried. As herein shown, the frame 93 is formed with an annular guide flange 95 which is engaged by an inturned flan e 96 on the turret 94.

The axis of rotation of the turret 81 is coincident with that of the motor shaft 71, which is journaled at its forward end in a bracket or extension 97 on the motor casing 39 and has fast thereon a bevel pinion 98 which engages a bevel gear 99 rotatably mounted in the bracket 97 and held thereby against movement in the direction of its axis with respect to the motor casing. The gear 99 has asliding splined connection with a shaft 100 vertically movable with the sliding frame 93 and journaled at its outer end in a suitable bearing in said frame, whereby the operative connection between said shaft and the motor 67 is maintained irrespective of the position of said frame. The shaft 100 has herein fast upon one end thereof a pinion 101 which meshes with a gear 102 fast on a shaft 103 journaled in the frame 93 and arranged coaxial with the turret 94. Carried by the outer end of the shaft 103 is a sprocket 104 for actuating the cutter chain 69.

The shaft 103 is provided at its upper end with a worm 105 which meshes with a worm gear 106 (see Fig. 3) on a shaft 107 journaled in suitable bearings in the frame 93. Loosely mounted on the shaft 107 are relatively large and small gears 108 and 109, respectively, the former of which is connected b an intermediate gear 108 with a relative y small gear 110 on a shaft 112 journaled 1n suitable bearings in the frame 93, and the latter of which meshes directly with a relatively large gear 111 on said shaft. The gears 108 and 109 are adapted to be alternatively clutched to the shaft 107, as by clutch hubs 113 and 114, whereby the shaft 112 may be operatively connected with the shaft 107 for relatively fast and slow rotation in opposite directions, respectively, or may be operatively disconnected therefrom. The clutch hubs 113 and 114 are carried by a yoke 115 which is operated by a suitable clutch controlling handle 116. Secured to the shaft 112 is a worm 117 which meshes with a worm gear 118 on a shaft 119 journaled in the frame 93 and carrying at its outer end a pinion 120 which engages an internal gear 121 on the turret 94. By properly operating the clutches 11,3 and 114 the turret 94 may be rotated about its axis to swim the cutter bar 68 at relatively fast spee in one direction or at relatively slow speed in the opposite direction.

Loosely mounted on the opposite ends of the shaft 107, and adapted to be connected therewith by means of clutches 122, are wo'rms 123 which mesh with worm gears 124 (see Fig. 4) on shafts 125 having on their ends pinions 126 which mesh with racks 127 on the turret 81, whereby the frame 93 may be moved transversely of said turret in its ways 92.

In Fig. 10 the machine is shown with its parts in a position for transportation from place to place about the mine. At this time the turntable 36 is in an angular position in which the cutter bar 68 is substantially parallel to the track 27 and is lifted by the ram 41 into a vertical position in which said cutter bar is clear of said trackway. This vertical position of the cutter bar may, of course, be obtained by suitable adjustment of the sliding frame 93 instead of by operation of the ram 41, although the latter is preferable.

In the operation of undercutting, as illustrated in Figs. 6 and 7, the turret 81 being in the position shown with the cutter bar horizontal, the machine is propelled along the trackway to bring the end of said cutter bar adjacent the face 128, and the turret 94 rotated to swing the cutter bar outwardly into the dotted line position indicated by the letter A in Fig. 6. The machine is then propelled forwardly along the trackway 27 to carry the cutter bar into the position shown in full lines in Fig. 6, thereby making the sumping cut. The turret 94 is then swung to carry the cutter bar from the full line position into the dotted line position indicated by the letter B, and the truck is finally moved backwardly upon the trackway to bring the cutter bar into the dotted line position C, thereby completing the cut, all in accordance with the well known arcwall method of undercutting. It will be observed in this connection that the vertical adjustability of the cutter bar, by reason of the vertically movable turntable 36 and the slide 93, permits the elevation of the cutter bar into a position above the tops of the rails, as shown in Fig. 10, thereby permitting the machine to be transported from place to place about the mine, but, also permits the cutter bar to be lowered into a position to rest squarely upon the mine bottom, so as to make an undercut in a plane substantially coincident with the plane of said bottom. This is a feature of considerable advantage in the art, inasmuch as in the truck mounted entry driving machines heretofore generally used it has been impossible to insert an undercut below the surface of the rails of the trackway upon which the truck travels, so that, after shooting the coal, a layer remains upon the mine bottom which must be specially removed in order to maintain the plane of said bottom before the cutting can proceed. It is to be observed that this mechanism can be operated upon the arc-wall principle to cut a kerf beneath the top of the track byswinging the turntable supporting the cutting mechanism upon the vertical axis of the support 41 so that the cutter bar 68 is outside of the trackway as shown in Fig. 14, then swinging the cutter bar 68 to a position making an acute angle with the trackway and then lowering it onto the bottom, then running the machine forward toward the face while making the sumping out, then stopping the machine and swinging the bar across to the opposite side of the trackway, and finally making the withdrawing cut. This is of course a very substantial advantage.

In addition to its operation in undercut ting, as above explained, it will be seen that the machine above described is capable of cutting a horizontal kerf at substantially any desired elevation. Thus, by reference to Fig. 7, it will be seen that, by vertically adjusting the slide 93 with the turntable depressed, a

' cut may be made at substantially any level between the positions indicated by the letters D and E, that by thereafter raising the turntable a cut can be made at substantially any level between the positions E and F, and that by rotating'the turret 81 through 180, so as to invert the same and bring the cutter bar uppermost, a cut can similarly be inserted at substantially any level between the positions G and H. It will thus be seen that the vertical adjustability of the cutter bar by means of the turret S1 and slide 93 can be supplemented by a vertical adjustment of the turntable 36 by means of the ram 41, thereby increasing the range of adjustability.

In the operation of shearing, which is (hagrammatically illustrated in Figs. 8 and 9, the turret 81 is rotated through 90 from the position of said turret in the operation of undercutting, thereby bringing the cutter bar into a position to swin in a vertical plane, whereupon the mechanism may be operated substantially as above described in connection with undercutting to produce a vertical cut. It will be observed in this connection that, by proper adjustment of the turret 81 and slide 93, this vertical cut may be made in substantially any vertical plane (within the limits of the machine) parallel to the trackway 27 or that, by angularly adjusting the turntable 36, said out may be made in a vertical plane disposed at any desired angle to said trackway.

This adjustability of the turntable 36 permits the cutter bar to be swung into a position substantially at right angles tothe trackway so as to operate upon a face or wall extending parallel to said trackway, as in opening a room neck. When so turned, said outter bar may be adjusted and operated for the purpose of either shearing or undercutting said face, as will, it is thought, be clear without further explanation. Also, by operating the turntable to bring the cutter bar into a position transverse to the trackway, and by adjusting said cutter bar into a horizontal position, the machine may be operated s a mounted longwall machine for the purpose of undercutting a face at either side of the trackway, 'as illustrated in Fig. 11. In Fig. 1:2, the machine is shown as being similarly operated upon a face disposed relatively close and parallel to the trackway 27, the angular adjustment of the cutter bar being in this case obtained by rotation of the turret 94, rather than of the turntable 36.

While in the foregoing explanations the operation of the machine in making horizontal and vertical cuts only has been described, it will be observed that, by proper adjustment of the turret 81, the cutter bar 68 may be arranged to swing in a plane disposed at any desired inclination, and that the distance of this plane from the axis of said turret ma be controlled by proper adjustment of the sli ing frame 93.

Fromthe foregoin it will be seen that the machine above described is capable of adjustment into a position to cut a kerf in substantially any desired plane in a wall or face disposed either parallel or transverse to the trackway upon which the machine is mounted.

In the claims where adjustment on a support is referred to it is to be understood that the adjustment is to take place between the element spoken of and the support; i. e. the element is adjustable relative to the support.

In the use of such expressions as longitudinal or transverse in the appended claims, it will be understood that reference is to directions longitudinal or transverse with respect to the machine as a whole, unless a different interpretation clearly appears from the claim itself.

IVhile I have in this application specifically described one embodiment which my invention may assume in practice, it will be understood that this form of the same is chosen for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

1. In a mining mechanism, in combination, guiding means, a support movable longitudinally thereof. a second support swiveled on a fixed vertical axis on said support, power means for rotating said second support on said axis operative while said axis remains stationary, power driven cutting mechanism, and means for vertically rectilinearly adjusting said cutting mechanism on said second support including a motor carried by said latter support.

2. In a mining mechanism, in combination, guiding means, a support movable longitudinally thereof, a second support swiveled on a vertical axis on said sup ort, motor driven cutting mechanism vertica ly rectilinearly adjustablc on said second support together with and by power from its own motor, and selfcontained power operated means wholly supported by said first support for feeding said cutting mechanism longitudinally or angularly during cutting.

3. In a mining mechanism, in combination, guiding means, a support movable longitudinally thereof. a second support swiveled on a vertical axis on said support, motor driven cutting mechanism supported on and vertically rectilinearly adjustable relative to said second support into surface contact with the mine bottom, and self-contained power operated means for feeding said cutting mechanism longitudinally or angularly during cutting.

4. In a mining mechanism, in combination, guiding means, a support movable longitudinally thereof. a second support swiveled on a vertical axis on said support, power means for rotating saidsecond support on said axis, motor driven cutting mechanism on said second support including a cutter bar adjustable about a horizontal axis, and means for vertically rectilinearly adjusting said cutting mechanism relative to said second support including a motor carried by said second support.

5. In a mining mechanism, in combination, guiding means, a support movable longitudinally thereof. a second support swiveled on a vertical axis on said support, power means for rotating said second support on said axis operative while said axis remains stationary, motor driven cutting mechanism on said second support including an independently pivoted cutter par, and means for vertically rectilinearly adjusting said cutting mechanism relative to said second support including a motor carried by said second support.

6. In a mining mechanism, in combination, guiding means, a support movable longitudinally thereof, a second support swiveled on a vertical axis on said support, means whereby said second support may be rotated on said axis including a motor carried by said second support, and motor driven cutting mechanism vertically rectilinearly adjustable on said second support and including a swinging cutter bar adjustable about an axis intersecting its swinging axis.

7. In a mining mechanism, in combination, guiding means, a support movable thereon. a second support swiveled on and; supported wholly by said support, power operated means for rotating said second support, motor driven cutting mechanism including an independently swinging cutter bar swingable when said second support is stationary and adjustable rectilinearly on said second support relative to the latter in a direction parallel to the axis of said swivel, and selfcontained power operated means for feeding said bar longitudinally or angularly during cutting.

8. In a mining mechanism, in combination, guiding means, a support movable thereon, a second support swiveled on said support, motor driven means for rotating said second support on its swivel, motor driven cutting' mechanism including an independently swinging cutter bar adjustable on said second support about an axis perpendicular to the axis of said swivel, and self-contained power operated means for feeding said bar longitudinally or angularly during cutting.

9. In a mining mechanism, in combination, guiding means, a support movable thereon, a second support swiveled on said support. motor driven means for rotating said second support on its swivel, and-motor driven cutting mechanism supported on said second support and adjustable rectilinearly relative to said second support in a direction parallel to the axis of said swivel and angularly adjustable about an intersecting axis by power.

10. In a mining mechanism, in combination, guiding means, a support movable thereon, a second support swiveled on said support, motor driven cutting mechanism including an independently swinging cutter bar supported on said second support and adjustable rectilinearlv relative to said second support in a direction parallel to the axis of said swivel and into and out of cutting position on the minebottom and disposable on the mine bottom outside the lateral limits of said guiding means, and self-contained power operated means for feeding said bar longitudinally or angularly during cutting.

11. In a mining mechanism, in combination, guiding means, a support movable thereon, a second support swiveled on said support, means whereby said second support may be rotated including a motor carried by said second support, and motor driven cutting mechanism supported on said second support and adjustable relative to said second support in a direction parallel to the axis of said swivel and into and out of cutting position on the mine bottom and angularly adjustable about an intersecting axis.

12. In a mining mechanism, in combination, guiding means, a support movable thereon, a second support swiveled on said first support for rotation relative to said first support while the latter is stationary, means whereby said second support may be rotated including a motor carried by the'latter support and rotating therewith, and motor driven cutting mechanism supported on said second support and adjustable relative to said second support in a direction parallel to the axis of said swivel and including a swinging cutter bar pivoted on an axis offset from but parallel to the axis of said swivel.

13. In a mining mechanism, in combination, guiding means. a support movable thereon. a second support swiveled on said support and supported wholly thereby, power operated means for rotating said second support. motor driven cutting mechanism on said second support including a swinging cutter bar pivoted on an axis spaced from but parallel to the axis of said swivel. and power driven adjusting means for said cutting mechanism operative to adjust it bodily rectilinearlv relative to said swiveled support to cause it successively to occupy a series of parallel positions. said means including a motor carried by said swiveled support.

14. In a mining mechanism, in combination. guiding means. a support movable thereon. a second support SWlVPlBCl on said support. motor driven cutting mechanism adjustable on said second support in a direction parallel to the axis of said swivel and singularly adiustable about an intersecting axis. and power driven adiusting means for said cutting meal anism for effecting both adjustments thereof. said latter means including a motor having a single fixed relation to said swiveled support.

15. In a mining mechanism. in combination, guiding means. a support movable hereon. a second support swiveled on said first support and rotatable thereon while said first support is stationary, motor driven cutting mechanism on and adjustable relative to said second support in a direction parallel to the axis of said swivel and including a swinging cutter bar pivoted on an axis spaced from but parallel to the axis of said swivel, and power driven means for adjusting said bar and swinging said bar on said spaced parallel axis.

16. In a mining mechanism, in combination, guiding means, a support movable thereon, a second suppdrt swiveled on said first support and rotatable thereon while said first support is stationary, motor driven cutting mechanism on and adjustable relative to said second support in a direction parallel to the axis of said swivel and including a swinging cutter bar pivoted on an axis offset from but parallel to the axis of said swivel, and power driven means selectively operable to adjust said bar or swing the same.

17. In a mining apparatus, in combination, guiding means, a support movable thereon, a second support swiveled on said support, motor driven cutting mechanism including a swinging cutter bar adjustable on said second support into different planes perpendicular to the axis of said swivel and about an axis perpendicular to said axis, and ower driven means for adjusting said bar in 0th ways.

18. In a mining apparatus, in combination, guiding means, a support movable thereon, a second support swiveled on said support, motor driven cutting mechanism including a swinging cutter bar adjustable on said second support into different planes perpendicular to the axis of said swivel and about an axis perpendicular to said axis, and power driven means selectively operable to adjust said bar or swing the same.

19. In a mining apparatus, in combination, guiding means, a support movable thereon, a second support'swiveled on a fixed axis on said support and rotatable thereon while said first support is stationary, motor driven cutting mechanism supported on and adapted to be adjustable vertically rectilinearly relative to said second mentioned support and pivoted on an axis spaced from but parallel to the axis of said swivel including vertical ways relative to which said cutting mechanism is rectilinearly adjustable, and power means for effecting said rectilinear adjustment.

20. In a mining apparatus. in combination. guiding means. a support movable thereon, a second support swiveled on said support, and motor driven cutting mechanism vertically adjustable on said second mentioned support and pivoted on an axis parallel to the axis of said swivel including vertical ways swiveled on said second support on a longitudinal axis and relative to which said cutting mechanism is adjustable, and power means for effecting such adjustment.

21. In a mining apparatus. in combination, a track. a truck having front and rear wheels movable thereon, a support swiveled on said truck about a fixed vertical axis disposed intermediate the axes of said wheels, motor driven cutting mechanism including a cutter bar vertically rectilinearly adjustable on said support, relative to the latter, into different planes perpendicular to the axis of said swivel, and separate truck moving means having a separate driving motor and disposed on said truck in rear of said support and outside of said wheel axes and operative in different positions of said cutter bar.

22. In a mining apparatus, in combination, a track, a truck having front and rear wheels movable thereon, a support swiveled on said truck about a fixed vertical axis disposed intermediate the axes of said wheels, motor driven cutting mechanism including a cutter bar vertically rectilinearly adjustable on said support, relative to the latter, into different planes perpendicular to the axis of said swivel, and separate truck moving means including a separate motor disposed on said truck in rear of said support and outside of said wheel axes and operative in different positions of said cutter bar.

23. In a mining apparatus, in combination, a track, a wheeled truck movable thereon, a sup ort swiveled on a fixed vertical axis on sai truck, motor driven cutting mechanism carried on said support and including a cutter bar movable to and swingable in horizontal and vertical planes, and means disposed in rear of said support and operative in different positions of said cutting mechanism whereby movement of said truck and of said bar bodil rectilinearly relative to said truck may be ha said means including a common actuating element.

24. In a mining machine, in combination, guiding means, a support, a second support swiveled on said first mentioned support and vertically adjustable relative thereto, and cutting mechanism on said second mentioned support including a cutter having a vertical rectilinear power adjustment independent of the vertical adjustment of said second mentioned support.

25. In a mining machine, in combination, guiding means, a support, a second support swiveled on said first mentioned support and vertically adjustable relative thereto, cutting mechanism on said second mentioned support including a cutter havjn a vertical rectilinear adjustment indepen ent of the vertical adjustment of said second mentioned support, and self-contained driving means therefor including a motor vertically adjustable with said second mentioned support.

26. In a mining machine, in combination, a truck, a vertically adjustable vertically pivoted turntable on said truck, cutting mechanism on said turntable, said cutting mechanism including a cutter vertically rectilinearly adjustable with respect to said turntable, and power means for effecting either adjustment.

27. In a mining machine, in combination, a support movable along a predetermined path, a second support swiveled thereon, and cutting mechanism vertically adjustable relative to said second mentioned support and movable therewith or independently thereof during a cutting operation, said cutting mechanism including a cutter angularly adjustable about a longitudinal axis, said cutter being also adjustable rectilinearly toward and from said axis by power.

28. In a mining machine, in combination, a support freely movable horizontally about a vertical axis during a cutting operation, a second support angularly adjustable on a fixed axis on said first named support, and cutting mechanism including a motor carried by said second support and including a cutter pivotable during cutting about an axis separate from said other axes and vertically rectilinearly adjustable with respect to said second support and motor by power from said motor.

29. In a mining machine, in combination, a support movable along a predetermined path during a cutting operation, a second support adjustable vertically and angularly about a vertical axis on said first named support, cutting mechanism carried by said second support and including a cutter pivotal during cutting about an axis separate from said other axes and vertically rectilinearly adjustable with respect to said second support, and power means for efl'ecting said latter adjustment.

30. In a mining machine, in combination, a single movable support having wheels in fixed relation thereto, a second support adjustable vertically and angularly about a vertical axis on said first named support and movable therewith and independently thereof during a cutting operation, and cutting mechanism carried by said second support and including a cutter vertically rectilinearly and angularly adjustable by power with respect thereto.

31. In a minin machine, in combination, a support movabTe during a cutting operation, a second support vertically adjustable and angularly adjustable on a vertical axis on said first named support, and cutting mechanism carried by said second support and including a cutter angularly adjustable about an axis transverse to the axis of adjustment of said second support, said cutter being also adjustable rectilinearly by power toward and from the axis about which it is angularly adjustable.

32. In a mining machine, in combination, a support, a second support angularly and vertically adjustable on said first named support and including a cutter bar adapted to swing in a horizontal plane, said cutter bar being vertically rectilinearly adjustable relative to said second support through a greater distance than the vertical adjustment of said second support on said first support, and

ower means for effecting said vertical adustment of said bar relative to said second support.

33. In a mining machine, in combination, a truck, a turntable vertically adjustable thereon, and cutting mechanism carried by said turntable and includng a cutter bar vertically rectilinearly adjustable by power with respect to said turntable.

34. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck which is horizontal and parallel to the machine body, means for actuating said neck, a cutting tool, means for supporting said tool on said neck for movement thereon toward and from the axial line of the neck including pairs of cooperating elements respectively carried by the neck and movable transversely relative to said neck and operative on rotation of one of said elements to effect rectilinear movement of said tool towards and from the axis of said neck, and means for actuating said cutting tool.

35. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck which is horizontal and parallel to the machine body, means for actuating said neck, a cutting tool, means for supporting said tool on said neck for movement thereon toward and from the axial line of the neck including pairs of cooperating elements respectively carried by the neck and movable transversely relative to said neck and operative on rotation of one of said elements to effect movement of said tool toward and from the axis of said neck, and means extending through said neck for actuating said cutting tool.

36. In a mining machine, in combination, a support, a second support having a turntable angularly adjustable on said first named support on a vertical axis, and cutting mechanism carried by said second support including a cutter angularly adjustable with respect thereto about a longitudinal axis, said cutter being also adjustable rectilinearly toward and from said last axis b power.

37. In a mining machine, the combination with a cutter, of means for supporting said cutter permitting angular adjustment thereof, said cutter being adapted to cut in planes substantially parallel to the axis of said adjustment and being adjustable rectilinearly toward and from said axis and with said axis about an intersecting axis, and means for effecting all of said adjustments by power.

38. In a mining machine, the combination with a cutter, of means for supporting said cutter permitting angular adjustment thereof about a substantially horizontal axis, said outter being adapted to cut in planes substantially parallel to said axis and being adjustable toward and from the same rectilinearly and with said axis about an intersecting axis,

said su porting means being movable to vary the position of the cutter during a cutting operation, and means for effecting all of said adj ustments by power.

39. In a mining machine, the combination with a cutter, of means for supporting the same including a swiveled turret support and a rotatable turret carried thereon, said cutter being adapted to cut in planes substantially parallel to the axis of said turret and being adjustable rectilinearly thereon toward and from said axis by power.

40. In a mining machine, the combination with a cutter, of means for supporting the same including a swiveled turret support and a turret rotatable about a horizontal axis thereon, said cutter being adapted to cut in planes substantially parallel to said axis and being adjustable rectilinearly toward and from the same by power and swingable in planes perpendicular to said axis.

41. In a mining machine, the combination with a swinging cutter bar, of a swiveled support therefor, and means thereon for supporting said cutter bar permitting adjustment thereof about an axis transverse to the axis of its swinging movement, said cutter bar being adjustable rectilinearly toward and from said transverse axis by power, and said supporting means being movable during a cutting operation.

42. In a mining machine, the combination with a swinging cutter bar, of movable means for supporting said cutter bar permitting movement thereof toward the material to be cut during a cutting operation and angular adjustment thereof about a substantially horizontal axis transverse to the axis of its swinging movement and a vertical axis parallel to the axis of its swinging movement, said cutter bar being adjustable toward and from said horizontal axis by power.

43. In a mining machine, the combination with a rotatable turret movable in the direction of its axis, of a cutter bar mounted to swing thereon about an axis transverse to the axis of said turret, said cutter bar being ad justable. rectilinearly toward and from said turret axis, and power operated means for adjusting said bar.

44. In a mining machine, the combination with a turret rotatable about a horizontal axis and movable in the direction of this axis during a cutting operation, of a cutter bar mounted to swing thereon about an axis transverse to the axis of said turret. said cutter bar being adjustable rectilinearly toward and from said turret axis, and power operated means for adjusting said bar.

45. In a mining machine, in combination, a support, a second support swiveled thereon, a turret rotatably mounted on said support on a substantially horizontal axis and movable therewith during a cutting operation, a frame slidably mounted on said turret for movement transverse thereto, power means for effecting such sliding movement, and cutting means carried by said frame.

46. In a mining machine, in combination, a support, a turret rotatably mounted thereon for rotation on a substantially horizontal axis and movable in the direction of its axis toward the work, a frame slidably mounted on said turret for movement transverse thereto, power means for effecting such sliding movement, and a cutter bar mounted on said frame to swing about an axis transverse to the axis of said turret.

47. In a mining machine, in combination, a support, a motor on said support, a turret rotatably mounted on said support and disposed coaxially with said motor, a frame slidably mounted on said turret for movement transverse thereto, means movable relative to said frame and carried by said turret for moving said frame, cutting means carried by said frame, and continuously operative driving connections between said motor and cutting means.

48. In a mining machine, in combination, a support, a turret rotatably mounted thereon, a driving shaft arranged coaxial with said turret, a frame slidably mounted on said turret for movement transverse thereto, a. second turret carried by said frame and rotatable thereon about an axis transverse to the axis of said first named turret, a cutter bar carried by said second turret and provided with a cuttcr chain, means for driving said cutter chain including a shaft carried by said frame and arranged coaxial with said second turret, and constantly operative driving connections between said last named shaft and said driving shaft including a transmission element operatively connected with each of said shafts and a shaft having a sliding connection with one of said elements.

49. In a mining machine, in combination, a support, a turret rotatably mounted thereon, a driving shaft arranged coaxial with said turret, a frame slidably mounted on said turret' for movement transverse thereto and to said shaft, cutting means carried by said frame, a rack on said turret, a pinion on said frame cooperating with said rack to move said frame, means on said frame for actuating said cutting means and said pinion, and constantly operative driving connections between said actuating means and driving shaft.

50. In a mining machine, in combination, a

7 support, a turret rotatably mounted thereon,

a driving shaft arranged coaxial with said turret, a frame slidably mounted on said turret for movement transverse thereto, a rack on said turret, a pinion on said frame c0- operating with said rack to move said frame, a second turret carried by said frame and rotatable thereon about an axis transverse to the axis of said first named turret, a cutter bar carried by said second turret and pro vided with a cutter chain, means for driving said cutter chain includin a shaft carried by said frame and arrange coaxial with said second turret, means operatively connected with said shaft for rotating said pinion, and constantly operative driving connections between said last named shaft and said driving shaft including a transmission element operatively connected with each of said shafts and a shaft having a sliding connection with one of said elements.

51. In a mining machine, the combination with a cutter, of means for supporting said cutter permitting angular adjustment thereof about two axes transverse to each other, said cutter also being adapted to cut in planes substantially parallel to one of said axes and being adjustable rectilinearly toward and from said last named axis by power and said supporting means being movable during a cutting operation in a direction parallel to said last mentioned axis.

52. In a mining machine, the combination with a cutter. of means for supporting said cutter permitting angular adjustment thereof about vertical and horizontal axes and for supporting said cutter in any adjustment thereof, said cutter also being adapted to cut in planes substantially parallel to said horizontal axis and being adjustable rectilinearly toward and from the same by power.

53. In a mining machine, the combination with a swinging cutter bar, of means for supporting said cutter bar permitting angular adjustment thereof about two axes transverse to each other, one of said axes being also transverse to the axis of swinging movement of said cutter bar and the other being parallel thereto, and said cutter bar being ad'usable rectilinearly toward and from sai first named transverse axis by power, said supporting means being movable to make sumping and withdrawal cuts.

54. In a mining machine, in combination, a truck, a turntable rotatably mounted on said truck, and cutting mechanism carried by said turntable including a cutter and means for supporting the same permitting angular bodily adjustment thereof, said cutter also being adapted to cut in planes substantially parallel to the axis of said adjustment and being rectilinearly adjustable toward and from said axis by power.

55. In a mining machine, in combination, a truck, a turntable rotatably mounted on said truck. a turret carried by said turntable and rotatable therewith or about a horizontal axis independently thereof, and a cutter bar mounted on said turret to swin about an axis transverse to the axis of sai turret, said cutter bar being adjustable toward and from said turret axis rectilinearly by power.

56. In a mining machine, in combination,

a truck, a vertically movable turntable thereon, cutting mechanism including a motor on said turntable and a swinging cutter bar pivotable about an axis transverse to said motor shaft, and constantly operative driving connections for rotating said turntable from said motor in either direction without disconnecting said connections from said turntable.

57. In a minin machine, in combination, a truck, a vertical y movable turntable thereon, cutting mechanism including a motor on said turntable, and means for rotating said turntable including an annular rack on said truck, a pinion engaging said rack, an element rotated by said motor, and a shaft connected with said pinion and having a sliding connection with said element.

58. In a minin machine, in combination, a truck, a truck riving motor thereon, and cutting mechanism carried by said truck and comprising a turret thereon, a cutter bar on said turret adjustable angularly and also bodily transverse y relative thereto, and a cutter bar actuating motor carried by said turret with its axis of rotation in fixed space relation to said turret.

59. In a minin machine, in combination, a truck, a truck riving motor thereon, and cutting mechanism carried by said truck and comprising a turret vertically adJustable thereon, a cutter bar on said turret ad ustable angularly and also bodily transversely relative thereto, and a cutter bar actuating motor carried b said turret with its axis of rotation in fixed space relation to said turret.

60. In a minin machine, in combination, a truck, a truck riving motor thereon, cutting mechanism carried by said truck and comprising a turret vertically ad ustable thereon, a cutter bar on said turret ad ustable angularly and also bodily transversely relative thereto, and a cutter bar actuating motor carried by said turret, and operative connections between said truck driving motor and said turret for varying the position of said turret relative to said truck.

61. In a minin machine, in combination, a truck, a truck riving motor thereon, cutting mechanism carried by said truck and comprising a turret vertically adjustable thereon, a cutter bar thereon ad ustable an larly and transversely relative thereto ang a cutter bar actuating motor carried by said turret, and operative connections com rising a hydraulic motor between said tru driving motor and said turret for var ing the position of said turret relatlve to said truck.

62. In a mining machine, in combination, a truck, a truck driving motor thereon, a turret base thereon, vertically ad ustable cutting mechanism carried by said truck and comprising a turret on said base, a cutter bar adjustable angularly and transversely relative thereto, and operative connections between said truck driving motor and said turret for varying the position of the latter, and including a reservoir in said turret base, a cylinder in said base, and a hydraulic motor having connections therewith.

63. In a mining apparatus, a truck, cutting mechanism thereon including an adjustable cutter bar and a turret having provision for supporting a vertical load of said bar, means for elevating said cutter bar and including a h draulic mechanism in said turret, a truck riving motor, and connections therewith for operating said hydraulic mechanism.

64. A mining machine comprising a truck, a swiveled vertically adjustable support thereon, a motor on said support, operative connections between said motor and truck for rotating said support on said truck, and cutting mechanism driven b said motor including a frame rotatable a out the axis of said motor and a cutter bar movable about a relatively transverse axis and adjustable on said frame toward or from the motor ax1s.

65. A mining machine comprising a truck, a swiveled vertically adjustable support thereon, a motor on said support, operative connections between said motor and truck for rotating said support on said truck, and cutting mechanism driven and adjustable by said motor including a frame rotatable about the axis of said motor and a cutter bar movable about a relatively transverse axis and adjustable on said frame toward or from the motor axis.

66. A mining machine comprising a truck, a swiveled vertically adjustable support thereon, a motor on said support, operative connections between said motor and truck for rotating said support on said truck, cutting mechanism driven by said motor including a frame rotatable about the axis of said motor and a cutter bar movable about a relatively transverse axis and adjustable on said frame toward or from the motor axis, truck driving mechanism including a separate motor, and operative connections connectable with said motor for varying the elevation of said support.

67. A mining machine comprising a truck, a swiveled vertically adjustable support thereon, means including a motor on said truck for adjusting said support vertically, means including a motor on said support for swingingJ said support about its swivel, cutting mec anism rotatable about the axis of the motor on said support including a cutter bar movable about a relatively transverse axis and adjustable toward or from the motor axis, a cutter chain on said bar, operative connections to the motor on said support for adjusting said bar relative to either axis, and operative connections to the same motor for driving said cutter chain.

68. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable ne'ck having an axis which is relatively stationary and horizontal and parallel to the machine body, means for actuating said neck, a cutting tool, members supporting and at the will of the operator moving said tool on said neck at right angles to and toward and from the axial line of the neck, and means extending along the axis of said neck for transmitting motion to said cutting tool independently of the movement of said supporting members, substantially as described.

69. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck having an axis which is relatively stationary and horizontal and parallel to the machine body, means for actuating sald neck, a cutting tool, members supporting and at the will of the operator moving said tool on said neck for movement at right angles to and toward and from the axial line of the neck, and means extending along the axis of said neck for transmitting motion to said cutting tool independently of the movement of said supporting members, substantially as described.

70. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck having an axis which is relatively stationary and horizontal and parallel to the machine body, means for actuating said neck, a cutting tool, members supporting and at the will of the operator moving said tool on said neck for movement at right angles to and toward and from the axial line of the neck and for swinging the tool on an axis which is forward of the neck and perpendicular to the neck axis, a motor seated on the body of the machine, and means for transmitting motion from the motor to said cutting tool, substantially as described.

71. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck having an axis which 1s relatively stationary and horizontal and parallel to the machine body, a cutting .tool, members supporting said tool on said neck for movement at right angles to and toward and from the axial line of the neck, operator-controlled mechanism carried by said neck for effecting said movement, and means extending along the axis of said neck for transmitting motion to said cutting tool independently of the movement of said supporting members, substantially as described.

72. In a' machine of the nature described.

the combination of a body turnable horizontally, means for turning said body, a rotatable neck having an axis which is relatively stationar and horizontal and parallel to the machine ody, a cutting tool, members supporting and at the will of the operator moving said tool on said neck at right angles to and toward and from the axial line of the neck, and means extending through said neck along the axial line of the latter for actuating said cutting tool independently of the movement of said supporting members, substantially as described.

73. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck having an axis which is relatively stationary and horizontal and parallel to the machine body, a cutting tool, members supporting and for at the will of the operator moving said tool on said neck at right angles to and toward and from the axial line of the neck and for swinging the tool on an axis which is forward of the neck and perpendicular to the neck axis, operator-controlled power-driven mechanism for effecting said swinging movement, and means for actuating said cutting tool, substantially as described.

74. In a mining machine, in combination, a truck, a support rotatable thereon upon a vertical axis and having a machine support, cutting mechanism supported thereby and normally pivotally movable during cutting, and means for directly supporting said support upon a liquid column.

75. In a mining machine, in combination, a truck, a support rotatable thereon on a vertical axis and having a machine support, cutting mechanism supported thereby and normally pivotally movable during cutting, and means for adjustably supporting said support directly upon a liquid column including means for lengthening said liquid column.

76. In a mining machine, in combination, a truck, a support rotatable thereon upon a vertical axis and having a machine supporting surface, work performing means carried thereby and means for supporting said support upon said truck with its machine supporting surface in different horizontal planes including a liquid column upon which said support is adapted to directly pivot during a work performing operation of said first mentioned means.

77. In a mining machine, a truck adapted to run upon a track, a turntable thereon, cutting mechanism on said turntable having a pivoted cutter bar provided with cutting elements moving in an orbit within which the pivot of the bar is disposed, and a motor having a horizontal power shaft whose axis lies in the plane including the axis of the turntable and the bar pivot, and power operated means whereby said bar may be disposed in a transverse plane beneath the top of said track with its pivot at one side of said track.

78. In a mining machine, a truck adapted to run upon a track, cutting mechanism thereon having a pivoted cutter bar provided with cutting elements moving in an orbit within which the pivot of said bar is disposed, pgwer operated means whereby said bar may swung about its pivot while its pivot remains stationary, and motor power operated means whereby said bar may be disposed in a transverse plane beneath the top of said track with its pivot at one side of said truck.

79. In a mining machine, a truck adapted to run upon a track, cutting mechanism thereon having a pivoted cutter bar provided with cutting elements moving in an orbit within which the pivot of said bar is dis sed, power operated means whereby sai bar may be swung about its pivot while its pivot remains stationary, power operated means whereby said bar may be disposed in a transverse plane beneath the top of said track with its pivot at ohe side of said truck, and motor power operated means for moving said bar when so disposed to bring its pivot to the opposite side of the track. 7

80. In a mining machine, a truck adapted to run upon a track, cutting mechanism thereon having a pivoted cutter bar provided with cutting elements movin in an orbit within which the pivot of said bar is disosed, power operated means whereby said ar may be swung about its pivot while its pivot remains statlonary, motor power operated means whereby said bar ma be disposed in a transverse plane beneat the top of said track with its pivot at one side of said truck, power operated means for moving said bar when so disposed to bring its pivot to the opposite side of the track, and

ower operated means for moving said truck in opposite directions along said track.

81. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck having an axis which is relatively stationary and horizontal and parallel to the machine body, a cutting tool, mechanism carried by said neck and acting transversely to the axial line of the neck for supportin and at the will of the operator moving sai tool rectilinearly on the neck toward and from the axial line of the neck, said body including a motor, and means for transmitting motion from the motor to the cutting tool.

82. In a machine of the nature described, the combination of a body turnable horizontally and including a motor having a horizontal power shaft, means for turning said body, a rotatable neck which is horizontal and rotatable on an axis parallel to a line parallel to the power shaft of said motor, a

cuttin tool means for supporting and at the w' l of the operator moving said tool on said neck rectilinearly toward and from the axial line of the neck including cooperati elements respectively carried by the neck an movable transversely relative to the neck and operative on rotation of one of the elements to effect movement of the tool toward and from the axis of the neck, and means for transmitting motion from the motor to the cuttin tool.

83. a machine of the nature described, the combination of a body turnable horizontally and including a motorhaving a horizontal power shaft, means for turning said body, a rotatable neck which is horizontal and rotatable on an axis parallel to a line parallel to the power shaft of said motor, a cutting tool, means for supportin and at the will of the operator moving sai tool rectilinearly on said neck toward and from the axial line of the neck including cooperating elements respectively carried by the neck and movable transversely relative to the neck and operative on rotation of one of the elements to effect movement of the tool toward and from the.

axis of the neck, and means extending th h the neck for transmitting motion from t motor to the cutting tool.

84. In a machine of the nature described, the combination with a body turnable horizontally, means for turning said body, said bod including a motor, a head located on sai body and rotatable on an axis which is horizontal and parallel to the length of the body, cutting mechanism supported by the head and a justable thereon bodily rectilinearly toward said axis and rectilinearly from said axis to a position in which said cutting mechanism may rest upon a bottom supporting a track supporting the machine, transmission means extending from the motor along said axis into said head and thence to the cutting mechanism, and power operated means for moving said body bodily during cutting.

85. n a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a group of members bodily rotatable on a main horizontal relatively stationary axis, said group of members comprising a ead journaled on an axis which is perpendicular to said main horizontal axis, a transmission shaft in said perpendicular axis, means for rotating said transmission shaft, guiding and supporting means distinct from and parallel and ad' cent to said perpendicular axis, said head ing rectilinearly but nonrotatably movable on said guiding and supporting means only to ward and from said main horizontal axis, cutting means on said head, and actuating means for said cutting mechanism driven by said transmission shaft directly.

86. In a machine of the nature described,

the combination of a body turnable horizontally, power means for turning said body, a group of members bodily rotatable on a main horizontal, relatively stationary axis, said grou of members comprising a head journale on an axis which is perpendicular to said main horizontal axis, a transmission shaft in said perpendicular axis, means for rotating said transmission shaft, guiding and supporting means distinct from and parallel and adjacent to said'perpendicular axis, said head being rectilinearly but non-rotatably movable on said guiding and supporting means only toward and from said main horizontal axis, cutting means on said head, and actuating means extending from said transmission shaft to said cutting mechanism.

87. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a group of members bodily rotatable on a main horizontal, relatively stationary axis, said group of members comprising a head journaled on an axis which is perpendicular to said main horizontal axis, a transmission shaft lying in a plane to which said main horizontal axis is perpendicular, means for rotating said transmission shaft, guiding and supporting means distinct from and parallel and adjacent to said perpendicular axis, said 'head being nonrotatably but rectilinearly movable on said guiding and supporting means only toward and from said main horizontal axis, cutting means on said head, and actuatin means extending from said transmission s aft to said cutting mechanism.

88. In a machine of the nature described, the combination of a body turnable horizontally, power means for turning said bod a supporting frame, a group of members b0 ily rotatable on a main horizontal, relatively stationary axis, said group of members comprising a head journaled on an axis which is perpendicular to said horizontal axis, a transmission shaft rotatable on an axis arallel to a line arallel to the axis upon WhlCh said head is ournaled, means for rotating said transmission shaft, guiding and supporting means distinct from and parallel and adjacent to said perpendicular axis, said head being non-rotatably but rectilinearly movable on said guiding and supporting means only toward and from said main horizontal axis, cuttin mechanism on saidhead and adapted to wor in planes parallel to said axis, actuating means extending from said transmission shaft to said cutting mechanism, and means for transmitting power to said perpendicular transmission shaft.

89. In a machine of the nature described,

the combination of a body turnable horizon-' tall means for turning said body, a rotatable nec which is horizontal and parallel to the machine bod a cutting tool, members supported on said neck and adapted to support the cutting tool at varying distances from the axial line of the neck, whereby the cuttin tool may be carried through an orbital pat by the rotation of said neck and the radius of said orbital path may be varied by varying the distance at which said members su port said tool from the axial line of the neo operator-controlled power means for actuatin said tool su porting members to vary sai distance, an means extending along the axis of said neck for actuatin said tool.

90. In a machine of t e nature described, the combination of a body turnable horizontally, power means for turning said body, a tool support rotatable on a horizontal axis, mechanism for effecting rotation of said support, a cutting tool, members supporting said tool on lid support for movement toward and from the axial line of said support, means on said rotatable support for actuating said supporting members for movin said tool toward and from the axial line 0 the rotary support, and means extending along the axis of 1said support for actuating said cutting too 91. In a mining mechanism, a wheeled support adapted to run along a trackw'ay, wheel driving mechanism on said support, an elongated cutter bar, means for adjusting and supporting the same on said support including means to which said cutter bar is pivotally connected and relative to which said bar may be held in fixed angular relation or swung as desired, means for adjustably supporting said second mentioned means operative to support the same in positions in which said bar is respectively flat on the bottom outside the lateral edge of a trackway alon which said support runs, and in a paralle plane between the sides of the trackway and adjacent the roof, and motor power means on said support for actuating said wheel driving mechanism, said bar and said adjusting and supporting means.

92. In a mining mechanism, a wheeled support adapted to run along a trackway, wheel driving mechanism on said support, an elongated cutter bar, means for adjusting and supporting the same on said support including means to which said bar is pivotally connected and relative to which said bar may be held in fixed angular relation or swung as desired, means for adjustably supporting said second mentioned means operative to sup ort the same respectively in a position in w ich said bar is flat on the bottom outside. of the lateral edge of a trackway along which said support runs and in a position in which swin of said bar relative to said second mentions means will be in a plane making a dihedral angle with the bottom whose edge is parallel .93. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a group of members bodily rotatable on a main horizontal, relatively stationary axis, said group of members comprising a head journaled on an axis which is perpendicular to said main horizontal axis, a transmission shaft in said perpendicular axis, means for rotating said transmission shaft, guiding and supporting means distinct from and parallel and adjacent to said perpendicular axis, cutting means applied to said guiding and supporting means and adjustable thereon toward and from said main horizontal axis, and actuating means extending from said transmission shaft to said cutting mechanism, substantially as described.

94. In a. machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a supporting frame, a group of members bodily rotatable on a main horizontal, relatively stationary axis, said group of members comprising a head jour aled on an axis which is perpendicular to said horizontal axis, a transmission shaft on said perpendicular axis, means for rotating said transmission shaft, guiding and supporting means distinct from and parallel and adjacent to said rpendicular axis, cutting mechanism applied to said guiding and supporting means and adjustable thereon toward and from said main horizontal axis and adapted to work in planes parallel to said axis, actuating means extending from said transmission shaft to said cutting mechanism, and means for transmitting power to said perpendicular transmission shaft, substantially as described.

95. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a rotatable neck which is horizontal and parallel to the machine body, a cutting tool, members supported on said neck and adapted to sup- .port the cuttin tool at varying distances from the axial line of the neck, whereb the cutting tool may be carried throug an orbital path by the rotation of said neck and the radius of said orbital path may be varied by varying the distance at which said members su port said tool from the axial line of the nec operator-controlled means for actuating said tool supporting members to vary said distance, and means extending along the axis of said neck for actuating said cutting tool, substantially as described.

96. In a machine of the nature described, the combination of a body turnable hori ".ontally. means for turning said body, a tool support rotatable on a horizontal axis, mechanism for effecting rotation of said support, a cutting tool, members supporting said tool on said support for movement toward and from the axial line of said support, means on said rotatable support for actuating said supporting members for moving said tool toward and from the axial line of the rotary support, and means extending along the axis of said support for actuating said cutting tool, substantially as described.

97. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a tool support rotatable on a horizontal axis, mechanism for effecting rotation of said support, a cutting tool, members supporting said tool on said support for movement toward and from the axial line of said support and for swinging the tool in a plane parallel to said axial line, mechanisms on said rotatable support for actuating said supporting members for moving said tool toward and from the axial line of the rotary support and for swinging the tool in a plane parallel to said axial line, and means for actuating said cutting tool. substantially as described.

98. In a miningapparatus, in combination, a wheeled support'adapted to run along the trackway. a frame pivotally mounted on said support for horizontal swinging movement about a vertical axis and having an outer end extending beyond said support, a motor, cuttihg mechanism driven by said motor including a cutter chain carrying cutter bar adjustably mounted on the outer end of said frame and disposable inxa transverse plane beneath the top of the trackway at one side of the trackway to make a horizontal cut at the level of the mine bottom, and mechanism for adjusting said cutter bar rectilinearly relative to saidframe into different parallel planes.

99. In a mining apparatus, in combination, a wheeled support, a frame wholly supported bv said support. and pivotally mounted on said support for swinging movement about a vertical axis and having a portion overhanging said support, a motor carried by said swingable frame, cutting mechanism driven by said motor including a cutter chain carrying cutter bar adjustably mounted on the overhanging portion of said frame. and mechanism driven by said motor for adjusting said bar rectilinearly relative to said frame into different parallel planes.

100. In a mining apparatus, in combination, a wheeled support adapted to run along a trackway, a frame wholly supported by said support and pivotally mounted at its inner end on the forward end of said support for horizontal swinging movement about a vertical axis and having its outer end projecting beyond said support, cutting mechanism carried on the outer end of said frame including a cutter chain carrying cutter bar adjustable relative to said frame into different parallel planes, motor driven mechanism for swinging said frame laterally to position said cutting mechanism at one side of said support.

and motor driven mechanism for thereafter adjusting said cutter bar to a position substantially on the mine bottom at one side of the trackway.

101. In a mining apparatus, in combination, a wheeled support, a frame wholly supported by said support and pivotally mounted at its inner end on the forward end of said support for horizontal swinging movement about a vertical axis. cutting mechanism carried on the outer end of said frame including a pivoted cutter chain carrying cutter bar swingable about an axis spaced from and parallel to said frame axis, motor driven mechanism for swinging said bar, and motor driven mechanism for adjusting said bar rectilinearly relative to said frame into different parallel planes.

102. In a mining apparatus, in combination, a wheeled support, a frame wholly supported by said support and pivotally mounted on said support for horizontal swinging movement about a vertical axis, a motor carried by said swingable frame, cutting mechanism carried by said frame including a cutter chain carrying cutter barpivoted about an axis spaced from but parallel to said frame axis, mechanism driven by said motor for actuating said cutting mechanism, and mechanism driven by said motor for adjusting said bar rectilinearly relative to said frame into different parallel planes.

103. In a mining apparatus, in combination. a wheeled support, a frame wholly supported by said support and pivotally mounted on said support for horizontal swinging movement about a vertical axis, cutting mechanism carried by said frame including a cutter chain carrying cutter bar pivoted about an axis spaced from but parallel to said frame axis, motor driven mechanism for adjusting said bar rectilinearly relative to said frame into different parallel planes, and motor driven mechanism for swinging said frame and bar about their respective pivots.

104. In a mining apparatus, in combination, a wheeled support, a frame wholly supported by said support and pivotally mounted on said support for horizontal swinging movement about a vertical axis and having tion, a wheeled support, a frame wholly supported by said support and pivotally mounted on said support for horizontal swinging movement about a vertical axis and having an outer end projecting be ond said support, vertical guideways carrie on the outer end of said frame, cutting mechanism adjustably tion with cutting mechanism, of supporting means therefor including a pair of telescoping cylindrical guide members, said guide members being relatively angularly and longitudinally movable, and means for causing relative longitudinal movement of said members to raise or lower said cutting mechanism comprising a hydraulic cylinder arranged concentric with said cylindrical members within the same and a piston in said cylinder.

107. In a mining machine, in combination, a vertically movable guide, cutting mechanism movable in said guide longitudinally thereof. said cutting mechanism being supported by said guide and being located beneath the same, and a hydraulic motor for raising and lowering said guide to permit said cutting mechanism to operate at differentelevations.

108. In a mining machine, in combination, a truck, cutting mechanism thereon, a hydraulic motor for raising and lowering said cutting mechanism with respect to said truck, a pump for supplying said hydraulic motor, means for propelling said truck, and a motor for alternatively actuating said truck propelling means and pump.

109. A mining machine comprising a truck, cutting mechanism thereon. a fluid motor for raising and lowering said cutting mechanism with respect to said truck, a pump for supplying said motor, truck driving mechanism including a motor, and a driving connection between said motor and pump including a clutch.

110. A mining machine comprising a wheeled truck. cutting mechanism thereon, a lifting mechanism between said mechanism and truck including a pump, truck driving mechanism including a motor, and a plurality of driving members on said motor shaft one connected to said pump and the other to the truck wheels.

111. A mining machine comprising a wheeled truck, cutting mechanism thereon,

a lifting mechanism between said mechanism and truck including a pump, truck driving mechanism including a motor, a plurality of drivin members on said motor shaft one connecte to said pump and the other to the truck wheels, and a clutch controlling the connection of one of said members to said motor.

112. A mining machine comprising a wheeled truck, cut-ting mechanism thereon operative to cut a plane kerf, elevating mechanism for said cutting mechanism including a cylinder and piston, a reservoir communieating with said cylinder, a pump for supplying fluid from said reservoir to said cylinder, and serially arranged valves controlling the flow between said reservoir and cylinder in each direction.

113. A mining machine comprising a wheeled truck, cutting mechanism thereon, elevating mechanism for said cutting mechanism including a cylinder and piston, a res ervoir communicating with said clinder, a

pump for supplying fluid from said reservoir to said cylinder, valves controlling the flow between said reservoir and cylinder, a pitman connected to said pump, truck driving mechanism including a motor, and means for operatively connecting said motor to drive said pitman.

114. A mining machine comprising a Wheeled truck, cutting mechanism thereon, elevating means for said cutting mechanism including a cylinder and a piston movable therein, a reservoir communicating with said cylinder, means including a pump for supplying fluid from said reservoir to said cylinder, valves controlling the flow between said reservoir and cylinder, a pitman connected to said pump, truck driving mechanism including a motor, driving members respectively for said pump and truck driving anechanism driven by said motor, and a clutch controlling the connection of said members to said motor.

115. In a mining machine, a truck adapted to run upon a track, cutting mechanism thereon having a pivoted cutter bar provided with cutting elements moving in an orbit within which the pivot of said bar is disosed, motor operated means whereby said Ear may be d sposed in a transverse plane beneath the top of said track with its pivot at one side of said track to make a horizontal cut, and means whereby said bar may be caused to swing in a vertical plane.

116. In a mining machine, a truck adapted to run upon a track, cutting mechanism thereon having a pivoted cutter bar provided with cutting elements moving in an orbit within which the pivot of said bar is disposed, motor operated means whereby said bar may be disposed in a transverse plane beneath the top of said track with its pivot at one side of said track to make a horizontal cut, and means whereby said bar may be caused to swing in a vertical plane intersecting the mine bottom between the sides of the kerf cut by said bar when in said first mentioned disposition thereof.

117. In a mining machine, a machine frame, cuttin mechanism, and motor operated adjusta le supporting means for said cutting mechanism on said frame permitting adjustment of the-cutting mechanism into positions wherein the plane of the mine bottom may be extended and wherein a kerf perpendicular to said plane may be cut.

118. In a mining machine, a machine frame, cutting mechanism, and motor operated adjustable supporting means for said cutting mechanism on said frame permitting adjustment of the latter into positions wherein the plane of the mine bottom may be extended and wherein a cut may be made making an angle with said plane.

119. In a mining apparatus, a truck adapted to move along a track midway between the ribs of an entry, a cutter bar mounted on said truck and swingable with respect thereto to make an arcuate face cut, said cutter being disposable at the beginning of a sumping cut at an acute angle to a tangent to the arcuate cut at its juncture with the rib, said bar being at that time disposable upon the bottom and wholly between the track and the rib, and motor operated means whereby said bar may be adjusted to cut in a plane making an angle with said bottom.

120. In a mining apparatus, a truck adapted to run upon a track, an elongated cutter bar on said truck, and a mounting for said cutter bar comprising a member pivoted upon said truck about an axis disposable vertically or horizontally, said cutting means being disposable when said axis is vertical upon the bottom Wholly at one side of the track and makin a less angle with the line of track than is made by a line connecting the end of said bar remote from said vertical axis with said vertical axis, and motor operated means for changing the plane of the bar.

121. In a mining machine, the combination with a machine frame, a pivoted cutter and a driving motor therefor, of means for supporting said cutter on said frame for angular adjustment about an axis extending longitudinally of said frame, said cutter being ada ted to cut in planes substantially paralle to the axis of said adjustment, and means driven by said motor for bodily moving said cutter toward and from said axis while its pivot is maintained in a plane perpendicular to said axis.

122. In a mining machine, the combination with a mining machine frame, a pivoted cutter, and a drivin motor therefor on said frame, of means or adj ustably supporting said cutter on said frame for angular bodily adjustment about an axis extending longitudinally of said frame, and means driven by said motor for bodily moving said cutter towards and from said axis while LJld cutter lies in planes parallel to said axis and while said cutter pivot is maintained in a plane perpendicular to said axis including power transmission mechanism for effecting such adjustments including a shaft coaxial with said axis and driven by said motor.

123. In a mining machine, the combination with a pivoted cutter and a driving motor therefor, of means for supporting said cutter for angular adjustment about a substantially horizontal axis, said cutter being adapted to cut in planes substantially parallel to said axis, and means driven by said motor for bodily moving said cutter toward and from said axis, the axis of said cutter pivot remaining in a single plane perpendicular to said horizontal axis during such adjustment.

124. In a mining machine, the combination with a machine frame, a pivoted cutter and a driving motor therefor, of means for supporting said cutter on said machine frame including a rotatable turret rotatable on an axis extending longitudinally of said machine frame, said cutter being adapted to cut in planes substantially parallel to the axis of said turret, and means driven by said motor for bodily moving said cutter toward and from said axis while maintaining the pivot thereof in a single plane perpendicular to the axis of said turret.

125. In a mining machine, the combination with a machine frame, a pivoted cutter and a driving motor therefor, of means for supporting said cutter on said machine frame including a rotatable turret rotatable on an axis extending longitudinally of said machine frame, said cutter being adapted to out only in planes substantially parallel to the axis of said turret, and means driven by said motor and including a power transmission shaft extending along said axis for bodily moving said cutter towards and from said axis while maintaining the pivot thereof in a single plane perpendicular to the axis of said turret.

126. In a mining machine, the combination with a cutter and a driving motor therefor, of means for supporting the cutter including a turret rotatable about a substantially horizontal axis, said cutter being adapted to cut in planes substantially parallel to said axis, and means driven by said motor for bodily moving said cutter toward and from said axis while maintaining the pivot thereof in a plane perpendicular 'to said horizontal axis.

127. In a mining machine, the combination with a swinging cutter bar and a driving motor, of means for supporting said cutter bar for adjustment about an axis to which the axis of its swinging movement is at all times transverse, and means driven by said motor for moving said cutter bar bodily toward and from said transverse axis without bodily movement in a direction longitudinal of said first mentioned axis.

128. In a mining machine, the combination with a cutter and a driving motor, of means for supporting said cutter for angular adjustment, said cutter being adapted to cut in planes substantially parallel to the axis of said adjustment and means driven by said motor for moving said cutter bodily toward and from said axis while maintaining its position unchanged longitudinally with respect to said axis, and means for adjusting said supporting means about an axis transverse to said first named means.

129. In a mining machine, the combination with a cutter and a driving motor, of means for supporting said cutter mounted for angular movement about a substantially horizontal axis, said supporting means being adapted to describe a complete circle about said axis, and said cutter being adapted to cut in planes substantially parallel to said axis, and means driven by said motor for bodily moving said cutter toward and from said axis without movement in a direction longitudinal of said horizontal axis.

130. In a mining machine, the combination with a cutter and a driving motor, of means for supportingsaid cutter mounted for angular movement about a substantially horizontal axis, said cutter being offset from said axis, and said supportin means being adapted to describe a comp ete circle about said axis, means driven by said motor for moving said cutter bodily toward and from said horizontal axis, and'means for adjusting said supporting means about an axis transverse to said first named axis.

131. In combination, a support, means operative on application of power for moving said support bodily towards and from a working face, a plane cutter bar, and means for supporting said bar on said support for bodily rotary movement about an axis parallel to the direction of bodily movement of said support and for pivotal movement about an axis intersecting the bar between its ends and disposed in a plane per endicular to said first mentioned axis, sai supporting means including means for moving said bar bodily toward said first mentioned axis while its pivot remains in said plane and While said first mentioned axis remains stationary, and power means for effecting each of the movements.

132. In combination, a support movable towards and from a working face, a rotatable neck arranged at the forward end thereof for rotation about a horizontal axis, a plane cutter bar, means for supporting said bar on said neck for pivotal movement in its own plane and for bodily rotation about said neck axis on rotation of said neck, and for bodily movement towards and from the axis of said neck while said axis remains stationary in its plane 

